書誌事項
- タイトル別名
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- Determination of Trace Boron in Iron and Steel by Adsorptive Stripping Voltammetry with Beryllon III
- ベリロン3を用いた吸着ストリッピングボルタンメトリーによる鉄鋼中微量ほう素の定量
- ベリロン 3 オ モチイタ キュウチャク ストリッピング ボルタンメトリー ニ ヨル テッコウ チュウ ビリョウ ホウソ ノ テイリョウ
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Adsorptive stripping voltammetry is proposed for the determination of boron at the low μgg-1 level in iron and steel. Beryllon III was used as a complexing agent for boron(III). Optimum conditions for a complex formation of boron(III)-Beryllon III complex were as follows: 0.06 M nitrate-0.04 M sulfate supporting electrolyte at pH 4.5; 1.0×10-5 M Beryllon III; 24 h complexation time. The complex was accumulated on a hanging mercury drop electrode at-0.35 V for 60 s under stirring, and subsequently was cathodically stripped to -0.8 V at a scan rate of 10mVs-1 by using a differential pulse mode. The interference of iron(III) was eliminated by complexing it with metaphosphoric acid. The cathodic stripping resulted in only a single well-defined peak around -0.5 V. The influence of foreign elements on the determination was evaluated. The calibration graph (peak height vs. boron(III) concentration) in the presence of 1 mg mL-1 iron(III) was linear over the concentration range of 1-25 ng mL-1 (correlation coefficient >0.999), with a relative standard deviation (n=4) of 2.6% at 10 ng mL-1. The minimum limit of determination was 1μgg-1 of boron in iron and steel. The proposed method could be applied to the determination of trace boron in iron and steel with good precision and accuracy.
収録刊行物
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- 鉄と鋼
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鉄と鋼 91 (7), 589-594, 2005
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282680159212800
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- NII論文ID
- 110001788906
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
- http://id.crossref.org/issn/00211575
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- NDL書誌ID
- 7407087
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
